Grain car door



Nov. 22, 1932. A. a. H. BAKER 1 1,838,213

GRAIN CAR DOOR Filed Feb. .16, 1931 2 Sheets-Sheet 1 lyveqforA.B.H.Baker Nov. "22, 1932. 'A. B. H. BAKER GRAIN CAR DOOR Filed Feb.16, 1931 2 Sheets-Sheet Z h vcl rar A.B.H.Baker Patented Nov. 22, 1932ARTHUR 3 11mm, or ronmen LA'IPR-AIIRIE, primrose, CANADA,

GRAIN can noon Application filed February 16, 1931, Serial m. 515,998,and in Canada May 5, 1936.

V The invention relates to improvements in grain cardoors and an objectof the invention-is to provide a grain car door which p can be readilyinstalled on the present grain L cars and which can be easily andquickly opened by an attendant to free the grain to run from the car andwhich is constructed to eifectively withstand the pressure of the grainwhen in use.

A further object is to construct a door embodying two similar right andleft hand door sections normally spanning the door-.

way opening and locked together to withstand the pressure of the grainand adapted when unlocked to swing outwardly through the doorway openingunder the pressure of the grain and thereby free the grain from the car,the outer ends of the sections at such A further object of the inventionis to provide a construction which permits the door sections to bereadily moved to a stored position against the interiorside wall of thecar and which prohibits the removal at any time of such door sectionsfrom the car.

A further object is to provide a grain tight door and in the furtheranceof such object to provide means for drawing the outer ends of the doorsections tightly against the inner faces of the posts as the saiddoorsare being passed to their closed posit-ions.

A still further object is to provide a simple, durable and effectivemeans for reinforcing and releasably fastening the door sectionstogether.

With the above more important and other minor objects in view which willbecome more apparent as the description proceeds, the invention consistsessentially "in the arrangement and construction of parts hereinaftermore particularly described, refer ence being had to the accompanyingdrawings, in which Fig. 1 is an exterior view of a grain car sectionalview at 3-3 Figure 2.

times pivoting in respect to the door posts.

nafter shortly described. The customary and their outer ends extendingto the inner sides of the door posts. 'Both sections are shown inFigu're7.

provided with my door, the door being shown Fig. 4' is an enlargeddetailed horizontal sectional view at 4-4 Figure 1.

Fig. 5 is an enlarged detailed vertical-sectional view at 5-5 -Figure'2.9

Fig. 6 is a perspective view of a portionof H one of the doorpostsshowing a pair of guide tracks associated therewith. 1 ig. 7 is aperspective view ofuone of the corners of one of the door'sections. Fig.8 is an enlarged detailed horizontal sectionalzview of one of thelatches and associated parts as they appear in Figure 4.

In the drawings like characters of reference indicate correspondingparts in the several figures.- 1 I i r I The doorway opening 1 isbounded by the customary door posts 2 and 3,'lintel 4 and sill 5 and thedoorway opening is spanned by-rny door, the details of which are heremouter closure door6 is herein-shown but such forms no part of thepresent invention as it is simply closed and sealed in the usual mannerafter-the carhas been loaded.

My door comprises two similar right and left hand door sections 7 and 8of customary height and which are adapted to close the doorway opening,said sections atsu'ch time having their inner ends butted as shown ofthe same size and are identically constructed, each being provided atthe exterior andv at the upper and lower edges with reinforcingtransversely extending metal bars 9 and 10 suitably bolted orrivetedthereto. The outer ends of the bars are all provided on their outerfaces with similar T-shaped heads 11 amply reinforced by webs 12provided, the heads being inset somewhat from' the ends of the sectionin the manner best To the section 7 of the door, I secure permanentlyaver'ticallydispo'sed metal plate 13 which in-the closed position of thedoor sections laps the adjacent end of the'door section Sand preventsthe escape of grain through the crack appearing between'the ends of theclosed door sections. It will be observed (see Figure 4) that when thesections are closed, the outer ends thereof lie to the inner sides ofthe post, that the inner ends thereof are butted and that the T-shapedheads 11 occupy at such time a position adjacent the inner corners ofthe osts.

Means are provided for re easably fastening the closed doorsectionstogether, such means also reinforcing the :closed door sections. Saidmeans embody upper and lower hinges 14 and 15 each having one wing 16permanentlyfastened to the outer face of the section 8 and another wing17 extending in front of the section 7 and having the free end thereofprovided witha horizontal slot 18, the slot receiving in each instance alocking latch 19 pivotally attached by a vertical pm 20 to a wing orplate 21 permanently fastened to the section 7. The latch in eachinstance has the free end thereof horizontally slotted as indicated at23 toreceive the eye ,of an eye bolt 24 secured to the door section anda locking pin 25 is provided to pass through the eye in advance of thelatch and lock the latch against swinging outwardly. The locking pin issuitably attached to the door section by a chain or flexible line 26.

From theabove, it will be obvious that one can easily and quickly lockthe door sections together by passing the latches through the slots 18,then swinging the latches to passthe eyes of the bolts through the slots23 and finally passing the locking pins through the eyes in advance ofthe latches. The arrangemen-t just described also reinforces the lockedof the grain within the car.

To the interior wall of the car at the sides of the posts, I locatesimilar upper and lower pairs of guiding tracks 27 and 28, the tracks ofeach'pair being arranged so that they pro vide a horizontally disposedbayonet slot 29 adapted-to receive slidably the heads 11. In actualpractice, the tracks are in the form of metal bars held in spacedrelation from the I interior wall of the car by intervening woodenstrips 30, the wooden strips being narrower than the metalbars andthereby providing the bayonet slots as best shown in Figure 5. The endsof the bars 27 and 28 adjacent the posts are bent around the ends of thestrips 30 in the manner best shown in Figure 6 to form pivot bearings 31and theyv have theirextremities permanently secured to the post by bolts32. 5

According to this arrangement when the door sections are passed toclosed positions, the T-shaped heads are received within the bearings 31and the bearingsand heads cooperate to form a pivot point around whichthe door sections are compelled to rotate'under the outward pressure ofthe grain upon the means locking the sections together being released.

- When it is desired'to store the sections, it is simply a matter ofshoving them endwise doors against the outward bursting pressure intotheir stored position against the interior side wall of the car and atsuch time, the T-heads travel freely within the bayonet slots. Here Imight mention that the outer ends of the pairs of bars 27 and 28 areturned inwardly so that the T -shaped heads are positively; preventedfrom escaping from the bayonet slots in which they .arereceived andaccordingly neither door sections can be removed from the car in anyposition. In order to prevent grain accumulating on the lower bars 30, Ihave provided vertical holes 30 at intervals in said bars through whichany lodged grain can escape.

The outer end of each door section is provided on its outer face withavertically dis- .posed filler strip 33 which prevents leakage of grainbetween said end of the section and the adjacent post when the sectionis in closed "position. In order to insure "of a grain tight6- jointbeing made between the outer end ofthe door section and the post in theclosed position of the section, I have inclined the tracks as indicatedat 27 and 28- (see Figure 6) slightly so that as the door sections arebeing of passed to closed position, such inclined parts vof the trackswill force the T-shaped heads towards theposts and in so doing jam thestrips 33 tightly into contact with the posts.

Guiding clips 3 1 are attached to the inner wall of the car to guide thedoor sections as they are, passed to stored position and to hold thempositively against the interior side-wall of the car when stored. 1

Assuming the door sections are in the closedposition as best shown inFigure 4L and that it is desired to release the grain from the car, itis only necessary to release the locking pins and this allows thelatches to swingoutwardly and permit the wings 17 to cscape therefrom atwhich time the doorvsections will simultaneously open under the pressureof the grain, such section's pivoting in "the bearings 31.' Intheirfully open positions,

the said sections will be disposed atright" angles to the car.

When 'itis desired to store the door'sections, the wings 17 are foldedback flat against the section 8 and the latches arefolded back againstthe section 7. The door sec tions are then swung back to the positionshown in Figure 4 and are then moved in a direction endwise of the carawayf'rom each other until they are wholly clear of the door- 0 wayopening in a position to the inner side of the side wall of the car andas they move 'into such stored position, the heads are travelling in thebayonet slots. r

While I-have entered into a detailed dotscription of the various parts,it will be of course understood that they can be readily modifiedwithout departing from the spirit of the inventionas set forth in theappended claims. h v l What I claim as my invention is 1. In a graindoor for a grain car, pairs of guiding members secured to the interiorwall.

of the car containing the doorway opening and forming upper and lowerhorizontally disposed key hole slots, a pair of similar door sectionsadapted to close the doorway opening with their inner ends butted andtheir outer ends to the inner sides of the posts, heads permanentlysecured to the outer ends of the sections and slidably received withinthe key hole slots of the. guiding members, said guiding members andheads being de signed to permit of the out swinging of the door sectionsunder the pressure of the grain Within the car and while retaining thedoor sections anchored to the car and means for releasably fastening thebutted ends of the sections together to withstand the outward pressureof the grain within the car.

2. In a grain door for a grain car, pairs of horizontally disposedspaced tracks secured to the interior wall of the car containing thedoorway opening, said tracks providing pivot bearings adjacent theposts, a pair of similar door sections spanning the doorway opening andhaving their inner ends butted and their outer ends located to the innersides of the posts, heads secured to the outer ends of the sections andslidably engaging the tracks, said heads and tracks co-acting to formpivots. around which the door sections swing in opening outwardly andwhile retaining the sections anchored to the car and means forreleasably fastening the butted ends of the sections together.

Signed at Portage la Prairie this 26th day of February 1930. V Y

7 ARTHUR B. H. BAKER.

